The excellent trend watching site Springwise (be sure to sign up for their free weekly email) has an excellent post on a company in LA that sells “seed bombs” for “guerrilla gardening.”

Basically seeds encapsulated in compost that can just be thrown into empty lots and will germinate on their own. An except from their post…

The brainchild of Los Angeles-based Common Studio, Greenaid aims to facilitate what it calls “guerrilla gardening” in the many forgotten grey spaces of the urban world, including sidewalk cracks, vacant lots and parking medians. Toward that end, it has reclaimed a series of old, quarter-operated candy machines and converted them instead for use selling seed bombs—mixtures of clay, compost and seeds that can be thrown anonymously into derelict urban sites to (temporarily) reclaim and transform them.